ILX56-PBS
Diagnostics
ControlLogix® Platform
User Manual
Page 50 of 87
5. Diagnostics
LEDs
The ILX56-PBS provides 3 diagnostic LEDs and a 4-character alpha-numeric LED display for
diagnostics purposes.
Figure 5.1 - ILX56-PBS LEDs
The ILX56-PBS LEDs indicate the module status as follows:
LED
Description
SF
This LED indicates the System Fault status.
Off
– ControlLogix Class 1 Connection Ok
Flashing Red
– ControlLogix Class 1 Connection not established.
BF
This LED indicates the status of the configured field devices.
Solid Red
– There are bus communication errors (if no valid packet has been received
by any configured slave for more than 1s).
Flashing Red
– There are slave errors (at least one slave has not been configured
properly and is not exchanging DPV0 data).
Flashing Green
– All slaves are successfully exchanging DPV0 data and the DP network
operational state is
CLEAR
.
Solid Green
– All slaves are successfully exchanging DPV0 data and the DP network
operational state is
OPERATE
.
Ok
The module LED will provide information regarding the system-level operation of the
module. Thus, if the LED is red then the module is not operating correctly. For example,
if the module application firmware has been corrupted or there is a hardware fault the
module will have a red Module LED.
If the LED is green (flashing), then the module has booted and is running correctly
without
any application configuration loaded.
If the LED is green (solid), then the module has booted and is running correctly
with
application configuration loaded.
Table 5.1
– ILX56-PBS Module LED operation
